Title: Measurements of the total amount of ozone in the vertical column of the atmosphere from a ground based Dobson spectrophotometer
at Arrival Heights, Antarctica

Description:

Abstract:

Atmospheric ozone is important to mankind because it absorbs most ultraviolet and other high energy radiation harmful to life,
preventing it from reaching the earth's surface. A rapid loss of more than half of the ozone over Antarctica occurs in the
springtime (= ozone hole). A Dobson spectrophotometer was installed at Arrival Heights in January 1988. The first full season
of measurements began in mid-September the following spring. At installation, this was the fifth Dobson to be operating in
Antarctica (South Pole, Halley Bay, Argentine Islands, Syowa). Measurements include the total amount of ozone in the vertical
column of the atmosphere from mid-September until the end of February, and during the full moon periods from March to September
(raw data = the times and instrument settings for instrument readings, derived data = column amounts of ozone). Measurements
of the vertical distribution of ozone are also possible for six weeks each spring and autumn. Even though satellite measurements
of ozone are now made routinely, their calibration and intercomparison between satellites depend on accurate ground based
measurements from the Dobson network. The instrument is shipped out for maintenance and intercomparison with regional standard
Dobson in Melbourne approximately every 5 years. It is still in manual mode but had an electronic encoder and computer added
in 2006 for recording measurements, which replaced recording by wax paper charts. The data is submitted to the World Ozone
and UV Data Centre, to the Network for the Detection of Atmospheric Composition Change (NDACC) database and to the World Meteorological
Organisation (WMO) for use in its Antarctic ozone bulletins.

REFERENCE:
Keys, J.G. The Antarctic ozone hole. in: UV radiation and its effects: an update: report of a workshop sponsored by the National
Science Strategy Committee for Climate Change, December 1997. Wellington: Royal Society of New Zealand. 1997. pp.6-8 [Royal
Society of New Zealand Miscellaneous Series: 49] ISBN 0908654820

The data is submitted to the World Ozone and UV Data Centre, to the Network for the Detection of Atmospheric Composition Change
(NDACC) database and to the World Meteorological Organisation (WMO) for use in its Antarctic ozone bulletins. It is up to
date and freely available via these websites.
The data is also stored by the collecting agency, NIWA in New Zealand. For access to this information please contact the investigators.

The data is submitted to the international Network for the Detection of Atmospheric Composition Change (NDACC). This public
record is available through an anonymous ftp or by a clickable map linking sites with data directories.